CN1477223B - 铸铁合金 - Google Patents
铸铁合金 Download PDFInfo
- Publication number
- CN1477223B CN1477223B CN031330703A CN03133070A CN1477223B CN 1477223 B CN1477223 B CN 1477223B CN 031330703 A CN031330703 A CN 031330703A CN 03133070 A CN03133070 A CN 03133070A CN 1477223 B CN1477223 B CN 1477223B
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- Prior art keywords
- cast iron
- iron alloy
- weight
- content
- alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 31
- 239000000956 alloy Substances 0.000 title claims abstract description 31
- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 22
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 12
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 9
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- 239000004411 aluminium Substances 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 9
- 229910052726 zirconium Inorganic materials 0.000 claims description 9
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000011733 molybdenum Substances 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 239000005864 Sulphur Substances 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 5
- 239000011777 magnesium Substances 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims 2
- DNXNYEBMOSARMM-UHFFFAOYSA-N alumane;zirconium Chemical compound [AlH3].[Zr] DNXNYEBMOSARMM-UHFFFAOYSA-N 0.000 claims 1
- 239000000470 constituent Substances 0.000 abstract 1
- 230000009466 transformation Effects 0.000 description 8
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 235000006708 antioxidants Nutrition 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 229910001126 Compacted graphite iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- ZGUQGPFMMTZGBQ-UHFFFAOYSA-N [Al].[Al].[Zr] Chemical compound [Al].[Al].[Zr] ZGUQGPFMMTZGBQ-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/04—Cast-iron alloys containing spheroidal graphite
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Exhaust Silencers (AREA)
- Supercharger (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Materials For Medical Uses (AREA)
- Soft Magnetic Materials (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
本发明提出了具有高热稳定性用于铸铁产品的铸铁合金。该合金的非铁含量至少包含碳、硅、钼、铝元素及其混合物包含镍、镁和/或硫元素。并且碳含量占重量少于2.9%。该合金用于例如制造排放集气管或者涡轮增压器壳。
Description
技术领域
本发明关于用于铸铁产品的具有高热稳定性的铸铁合金。合金的非铁含量至少包含碳、硅、钼和铝元素;其混合物包含镍、镁和/或硫。
背景技术
在汽车工业,铸铁合金用于生产需具有高热稳定性的铸件,例如,与从内燃机排放的热排气相接触的部件。因为内燃机产生出越来越高的功率,排气的温度也就越来越高。排气的集气管和涡轮增压器壳暴露于900至超过1000摄氏度的温度中。变换温度,即合金中的某种类型的晶体变换为另一种类型晶体的温度,在这样的高温中扮演着重要的角色。在变换温度下,体积发生变化并且体积的变化导致了部分铸件的不规则的膨胀特性。可以使用的合金必须具有高于使用中最大温度的变换温度。奥氏体铸钢合金或者含有高镍含量的合金也可以用于上面提到的高的使用温度中。镍是相当贵的原材料。排气集气管经常是由片状金属部件组成,在这样的情况下,糟糕的隔音使得它的存在具有负面影响。这些办法用于生产都相对较复杂。
EP534850 B1公开了一般类型的铸铁合金。该合金大约包含按重量3.1%的碳,按重量4.6%的硅,按重量的1.9%的铝,按重量1%的钼,并且如果合适的话还加入了钴和铌。
发明内容
在现有技术的基础上,本发明的一个目的是提供由尽可能便宜的元素构成的铸铁合金,铸件具有尽可能高的使用温度。
这个目标由具有高热稳定性的用于铸铁产品的铸铁合金达到,该合金的非铁含量至少包括碳、硅、钼、铝元素,还包含镍、镁和硫、锆,其中碳按重量的含量为2.5-2.8%,硅按重量的含量为4.7-5.2%,铝按重量的含量为0.5-0.9%,钼按重量的含量为0.5-0.9%,镍按重量的含量为0.1-1.0%,锆按重量的含量为0.1-0.4%。
本发明的铸铁合金可用于和内燃机的废气相接触的铸件,以及机动车的排气集管或者涡轮增压器壳。
具体实施方式
对于合金来说,具有尽可能高的结构稳定性以及尽可能的最大抗氧化性的是有利的。这是通过按重量4.7~5.2%的硅含量来得到的,这也是由按重量0.5~0.9%的铝含量得到的。
本发明的基本想法是提供具有大于950摄氏度的变换温度的铸铁合金,当其与内燃机结合使用时不具有破裂性膨胀的特性,而且在铸造过程中尽可能便宜地被生产。在铸铁合金内的石墨可以是球形或蠕虫状的。加入的镍的数量仍限于大约按重量1%。恰在铸铁合金被铸造成最后形状前加入按重量0.1~0.4%范围的锆,被证实是特别有利的。锆对于抗氧化和机械强度有有利的影响。锆可在预合金(prealloy)的形成中加入。
例一
由具有以下按重量百分比形式给出的化合物组成:2.6碳、5.1硅、0.1镍、0.6钼、0.6铝、0.6锆、0.06镁和少于0.01的硫,的球墨铸铁制造而成的用于客车内燃机的排气集管具有铁素体微观结构。用膨胀计测量的结果是纵向线性膨胀系数为16.10-16/K,这使得有可能下结论变换温度高于950摄氏度。在300摄氏度的温度下做热拉伸试验,得到下列机械强度值:Rp0.2=575N/mm2,Rm=600N/mm2,及A=0.4%。
例二
由具有以下按重量百分比给出的化合物组成:2.6碳、5.1硅、1.0镍、0.7钼、0.6铝、0.3锆、0.02镁以及0.02的硫,的蠕虫状石墨铸铁制造而成的用于客车内燃机的排气集管具有铁素体微观结构。膨胀计测量的其纵向线性膨胀系数为16.10-16/K。这使得有可能下结论变换温度高于950摄氏度。在300摄氏度温度下进行热拉伸试验,得到下列机械强度值:Rm=545N/mm2及A=0.1%。
如果温度在浇铸期间不会降落低于1460摄氏度以及如果铝和锆元素例如作为铝-锆预合金只恰在浇铸前加入,就有可能生产出具有高于950摄氏度变换温度的铁素体铸铁产品。由这种方法制造的产品的特点为在温度作用下体积改变很小、好的抗热冲击、好的机械性能、好的抗氧化以及低原材料价格。
Claims (8)
1.一种具有高热稳定性用于铸铁产品的铸铁合金,该合金的非铁含量至少包括碳、硅、钼、铝元素,还包含镍、镁和硫、锆,其中碳按重量的含量为2.5-2.8%,硅按重量的含量为4.7-5.2%,铝按重量的含量为0.5-0.9%,钼按重量的含量为0.5-0.9%,镍按重量的含量为0.1-1.0%,锆按重量的含量为0.1-0.4%。
2.如权利要求1所述的铸铁合金,其中所述碳包含石墨。
3.如权利要求2所述的铸铁合金,其中石墨呈球状石墨形式。
4.如权利要求2所述的铸铁合金,其中石墨呈蠕虫状石墨形式。
5.如权利要求1至3中之一所述的铸铁合金的使用,用于和内燃机的废气相接触的铸件。
6.如权利要求1至3中之一所述的铸铁合金的使用,用于机动车的排气集管或者涡轮增压器壳。
7.一种生产如权利要求1至3中之一所述的铸铁合金的工艺,其中只恰在熔料浇铸之前作为铝锆预合金加入铝和锆元素。
8.一种生产如权利要求1至3中之一所述的铸铁合金的工艺,其中浇铸前的熔料的温度高于1460摄氏度。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10233732A DE10233732A1 (de) | 2002-07-24 | 2002-07-24 | Gusseisenlegierung |
DE10233732.2 | 2002-07-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1477223A CN1477223A (zh) | 2004-02-25 |
CN1477223B true CN1477223B (zh) | 2011-06-22 |
Family
ID=30010355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN031330703A Expired - Lifetime CN1477223B (zh) | 2002-07-24 | 2003-07-24 | 铸铁合金 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7156929B2 (zh) |
EP (1) | EP1386976B1 (zh) |
JP (1) | JP4489383B2 (zh) |
CN (1) | CN1477223B (zh) |
AT (1) | ATE302861T1 (zh) |
DE (2) | DE10233732A1 (zh) |
ES (1) | ES2244859T3 (zh) |
SI (1) | SI1386976T1 (zh) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040198682A1 (en) * | 2001-11-30 | 2004-10-07 | Mcswiggen James | RNA interference mediated inhibition of placental growth factor gene expression using short interfering nucleic acid (siNA) |
US20060266439A1 (en) * | 2002-07-15 | 2006-11-30 | Maziasz Philip J | Heat and corrosion resistant cast austenitic stainless steel alloy with improved high temperature strength |
DE102004056331A1 (de) * | 2004-11-22 | 2006-05-24 | Georg Fischer Fahrzeugtechnik Ag | Sphärogusslegierung und Verfahren zur Herstellung von Gussteilen aus der Sphärogusslegierung |
US20080274005A1 (en) * | 2005-05-05 | 2008-11-06 | Wescast Industries, Inc. | Cast Iron With Improved High Temperature Properties |
EP1865082A1 (de) | 2006-06-08 | 2007-12-12 | Georg Fischer Eisenguss GmbH | Gusseisenlegierung mit guter Oxydationbeständigkeit bei hoher Temperaturen |
DE102008008856A1 (de) * | 2008-02-13 | 2009-08-20 | Daimler Ag | Turbinengehäuse und Verfahren zum Herstellen eines Turbinengehäuses |
WO2009108181A1 (en) * | 2008-02-25 | 2009-09-03 | Wescast Industries Incorporated | Ni-25 heat-resistant nodular graphite cast iron for use in exhaust systems |
CN102259167B (zh) * | 2010-05-25 | 2013-06-05 | 上海华新合金有限公司 | 涡轮增压器罩壳铸件铸造方法 |
EP2924138B1 (de) | 2014-03-26 | 2018-11-07 | GF Casting Solutions Herzogenburg Iron GmbH | Gusseisenlegierung |
CN103898397B (zh) * | 2014-04-14 | 2016-03-30 | 天津新伟祥工业有限公司 | 汽车涡轮壳及排气管用高硅钼铝铁素体耐热球墨铸铁 |
EP3394306B1 (en) * | 2015-12-25 | 2020-10-28 | Ford Otomotiv Sanayi Anonim Sirketi | Cast iron alloy provided with improved mechanical and thermal properties |
CN107801426B (zh) * | 2017-09-19 | 2020-12-18 | 邯郸慧桥复合材料科技有限公司 | 一种深松铲及其生产方法 |
US11667995B2 (en) | 2021-09-21 | 2023-06-06 | Ford Global Technologies, Llc | Cast iron alloy for automotive engine applications with superior high temperature oxidation properties |
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SU1036786A1 (ru) * | 1981-09-16 | 1983-08-23 | Харьковский Ордена Ленина И Ордена Октябрьской Революции Моторостроительный Завод "Серп И Молот" | Чугун |
EP0534850A1 (fr) * | 1991-09-26 | 1993-03-31 | Centre Technique Des Industries De La Fonderie | Fonte à graphite sphéroidal ou vermiculaire résistant à la chaleur |
CN1088271A (zh) * | 1992-12-16 | 1994-06-22 | 鞍山钢铁公司 | 高温耐磨合金及其制造技术 |
CN1176315A (zh) * | 1996-07-25 | 1998-03-18 | Ae格策有限公司 | 用于制造内燃机活塞环的铸铁合金 |
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-
2002
- 2002-07-24 DE DE10233732A patent/DE10233732A1/de not_active Withdrawn
-
2003
- 2003-04-30 ES ES03009679T patent/ES2244859T3/es not_active Expired - Lifetime
- 2003-04-30 AT AT03009679T patent/ATE302861T1/de active
- 2003-04-30 EP EP03009679A patent/EP1386976B1/de not_active Expired - Lifetime
- 2003-04-30 SI SI200330078T patent/SI1386976T1/sl unknown
- 2003-04-30 DE DE50301032T patent/DE50301032D1/de not_active Expired - Lifetime
- 2003-07-14 US US10/619,712 patent/US7156929B2/en not_active Expired - Lifetime
- 2003-07-24 CN CN031330703A patent/CN1477223B/zh not_active Expired - Lifetime
- 2003-07-24 JP JP2003201026A patent/JP4489383B2/ja not_active Expired - Lifetime
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SU1036786A1 (ru) * | 1981-09-16 | 1983-08-23 | Харьковский Ордена Ленина И Ордена Октябрьской Революции Моторостроительный Завод "Серп И Молот" | Чугун |
EP0534850A1 (fr) * | 1991-09-26 | 1993-03-31 | Centre Technique Des Industries De La Fonderie | Fonte à graphite sphéroidal ou vermiculaire résistant à la chaleur |
CN1088271A (zh) * | 1992-12-16 | 1994-06-22 | 鞍山钢铁公司 | 高温耐磨合金及其制造技术 |
CN1176315A (zh) * | 1996-07-25 | 1998-03-18 | Ae格策有限公司 | 用于制造内燃机活塞环的铸铁合金 |
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Title |
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JP昭62-142744A 1987.06.26 |
Also Published As
Publication number | Publication date |
---|---|
JP4489383B2 (ja) | 2010-06-23 |
SI1386976T1 (sl) | 2005-12-31 |
CN1477223A (zh) | 2004-02-25 |
DE50301032D1 (de) | 2005-09-29 |
JP2004060055A (ja) | 2004-02-26 |
US7156929B2 (en) | 2007-01-02 |
EP1386976B1 (de) | 2005-08-24 |
ATE302861T1 (de) | 2005-09-15 |
DE10233732A1 (de) | 2004-02-05 |
ES2244859T3 (es) | 2005-12-16 |
EP1386976A1 (de) | 2004-02-04 |
US20040018111A1 (en) | 2004-01-29 |
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